Foam Board Insulation R Value Per Inch

The r value of closed cell foam is r 6 5 7 per inch.

Foam board insulation r value per inch.

Jun 12 2017 in regards to closed cell sprayed in foam insulation r value can range between r 4 9 to r 7 1 per inch. Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. Foam board insulation. Asbestos cement board r value.

This foam board insulation is available with straight or tongue and groove edges to help limit air movement. Radiant barriers and vapor barriers are not rated by. Closed cell insulation products such fiberglass batt insulation standard fiberglass insulation batts or blankets provide an r value of 2 2 to 3 8 per inch of thickness. The r value for foamular xps insulation is provided from testing at two mean temperatures 40ºf and 75ºf and from two aging conditioning techniques 180 day realtime aged as mandated by astm c578 and a method of accelerated aging sometimes called long term thermal resistance lttr per can ulc s770 03.

Asbestos cement shingle siding. Rmax r matte plus 3 1 2 in. Asbestos lagging and paste will have a lower value. Insulation blankets batts and rolls spray foam insulation.

For example a wall with 3 fiberglass batting r value of 10 8. It is denser than eps and provides more r value with a rating of 5 per inch of thickness. Extruded polystyrene foam xps also known as blue board or pink board comes in many different thicknesses and edge profiles. Asbestos loose packed fibers powder.

Ft to the compare list. Compare click to add item insofast exi 2 5 r 10 eps foam board insulation panels 40 sq. 1 2 inch 3 3 4 inch 9 1 inch 16 1 1 2 inch. Here are the installation methods from lowest to highest average r value per inch.

Iso is the most expensive of all rigid insulation materials. Note that the material the insulation is made from will change the r value as well. This insulation board is probably one of the most widely used foam board insulation products in the residential construction industry. Xps has an r value of 4 5 to 5 0 per inch of thickness.

Thermal conductivity k 0 15. It s made of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7. Blown in or loose fill insulation.

With an r value of 6 5 per inch polyiso offers greater thermal resistance than other rigid foam products. Estimated r value of asbestos insulation per inch for pipe insulation corrugated paper.